package xj.graph2d;

public interface OpenShape {

  public void setArrowPosition();

  public void addArrows(ArrowAttr headArrowAttr, ArrowAttr tailArrowAttr);

  public void setTailArrow(ArrowAttr tailArrowAttr);

  public void setHeadArrow(ArrowAttr headArrowAttr);

  public Arrow getHeadArrow();

  public Arrow getTailArrow();

}
